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21. 发明专利

JPS63294609A DIELECTRIC PORCELAIN MATERIALS 失效
公开(公告)号：JPS63294609A
公开(公告)日：1988-12-01
申请号：JP13090287
申请日：1987-05-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： NOZAKI AYUMI , WATAI HISAO , IDO TAKEO
IPC分类号： C04B35/46 , C01G23/00 , H01B3/12 , H01P7/10
摘要： PURPOSE:To make to obtain dielectric porcelain materials having a high dielectric constant, stable temperature characteristics, and a large Q-value by making a specified composition and making a component composition to have each specified range by a mole fraction. CONSTITUTION:A composition formula is shown as x BaO-y TiO2-z [(1-m-n)Sm2 O3-m (SrO.CeO2-n (CaO.CeO2)], and a component composition is made to have a range by a mole fraction of 0.10

22. 发明专利

JPS62256727A PRODUCTION OF BAZRO3 DIELECTRIC POWDER 失效
公开(公告)号：JPS62256727A
公开(公告)日：1987-11-09
申请号：JP10062686
申请日：1986-04-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： HIGUMA HIROKO , NOZAKI AYUMI , WATAI HISAO , IDO TAKEO
IPC分类号： H01B3/00 , C01G25/00 , H01B3/10
摘要： PURPOSE:To easily produce fine BaZrO3 dielectric power having high surface activity by adding a water-alcohol soln. mixture dissolved therein with an inorg. zirconium salt to an alcohol soln. contg. the alkoxide of Ba to hydrolyze said soln. CONSTITUTION:Metallic Ba is dissolved in an alcohol soln. at 40 deg.C-the b.p. of alcohol in an inert gaseous atmosphere to form the alkoxide of the Ba. On the other hand, an inorg. zirconium salt is dissolved in a water-alcohol sol. mixture contg. water of 1-40 times mol of the above-mentioned metallic Ba and the alcohol of the amt. larger than the same at the above-mentioned temp. range. Said water-alcohol soln. mixture is then added to said alcohol soln. to hydrolyze the same in the above-mentioned atmosphere and temp. range. The precipitate obtd. by the coprecipitation is separated from the soln. and is subjected to a heating treatment in a 400-1,000 deg.C range after drying, by which the precipitate is pulverized. The BaZrO3 dielectric power which has small particle sizes and high surface activity and with which the dense dielectric ceramic material having less defects is obtainably by sintering is thus stably obtd.

23. 发明专利

JPS62256726A PRODUCTION OF SR-ZR-TI-O BASE DIELECTRIC POWER 失效
公开(公告)号：JPS62256726A
公开(公告)日：1987-11-09
申请号：JP10062286
申请日：1986-04-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： HIGUMA HIROKO , NOZAKI AYUMI , YAMADA AKIRA , WATAI HISAO , IDO TAKEO
IPC分类号： H01B3/00 , C01G25/00 , H01B3/10
摘要： PURPOSE:To produce Sr-Zr-Ti-O dielectric power having easy sinterability and uniform compsn. by adding a zirconium anhydride soln. to an alcohol soln. contg. the alkoxide of Sr and inorg. titanium salt, etc., to hydrolyze the same. CONSTITUTION:Metallic Sr is dissolved in an alcohol soln. at 40 deg.C-the b.p. of alcohol in an inert gaseous atmosphere to form the alkoxide of the Sr. On the other hand, an inorg. zirconium salt is dissolved in a water-alcohol soln. mixture contg. water of 1-50 times mol of the above-mentioned Sr and the alcohol of the amt. larger than the same at the above-mentioned temp. A titanium tetraalkoxide or inorg. titanium salt is then dissolved in the above- mentioned alcohol soln. or water-alcohol soln. mixture. Said water-alcohol soln. mixture is added to said alcohol soln. to hydrolyze the alcohol soln. in the above-mentioned atmosphere and temp. The precipitate obtd. by the coprecipitation is separated and is subjected to a heating treatment at 400-1,000 deg.C after drying, by which the precipitate is pulverized. The Sr-Zr-Ti-O base dielectric power is thus stably obtd.

24. 发明专利

JPS6022515B2 失效
公开(公告)号：JPS6022515B2
公开(公告)日：1985-06-03
申请号：JP13708578
申请日：1978-11-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATAI HISAO , MOMYAMA KIMIO , SAITO KYOSHI
IPC分类号： C04B35/49 , H01B3/12 , H01L41/18 , H01L41/187

25. 发明专利

JPS6021937B2 失效
公开(公告)号：JPS6021937B2
公开(公告)日：1985-05-30
申请号：JP983379
申请日：1979-01-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATAI HISAO , MOMYAMA KIMIO , SAITO KYOSHI
IPC分类号： C04B35/00 , C04B35/50 , H01L41/18 , H01L41/187 , H01L41/193

26. 发明专利

JPS5821155A PRODUCTION OF DETECTING ELEMENT FOR GAS AND HUMIDITY 失效
公开(公告)号：JPS5821155A
公开(公告)日：1983-02-07
申请号：JP11980581
申请日：1981-07-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATAI HISAO , IDO TAKEO , SATOU TOSHIAKI
IPC分类号： H01C7/00 , G01N27/12
摘要： PURPOSE:To obtain a detecting element having good thermal efficiency and excellent sensitivity and durability by superposing two sheets formed by adding a binder to powder of a metallic oxide having sensitivity to gas or humidity with metallic paste for a heater printed on one side of said sheets in-between, and calcining the superposed sheets. CONSTITUTION:Alloy powder paste of Au and Pd, Pt and Pd, etc. is screen- printed on one side of the sheet 1 out of the two sheets 1, 1' prepd. by adding a plasticizer, a binder such as resins to the powder of a metallic oxide having sensitivity to gas or humidity or both, whereby a heater 2 is formed. After electrodes 3, 3' are formed on the other surface of the sheet 1 and one surface of the sheet 1', the sheets 1, 1' are laminated under pressure with the heaters 2 in- between; thereafter the sheets are calcined to one body. Terminals 4, 4' for the electrodes 3, 3' and terminals 5, 5' for the heater 2 are mounted by a bonding method or the like, whereby the detecting element is obtained. The element having good heating efficiency of the heater and having excellent durability and high sensitivity is obtained.

27. 发明专利

JPH06310444A CVD SYSTEM FOR RAW-MATERIAL SOLUTION 失效
公开(公告)号：JPH06310444A
公开(公告)日：1994-11-04
申请号：JP10086993
申请日：1993-04-27
申请人： RYODEN SEMICONDUCTOR SYST ENG , MITSUBISHI ELECTRIC CORP
发明人： DOI NOBUAKI , UCHIKAWA HIDEFUSA , WATAI HISAO , MATSUNO SHIGERU , KINOUCHI SHINICHI , MATSUI YASUTSUGU , YUKI AKIMASA , KAWAHARA TAKAAKI , NISHIMOTO AKIRA , TSUTAHARA KOUICHIROU , HIGAKI TAKASHI , OKUDAIRA TOMOHITO , KASHIWABARA KEIICHIROU , EJIMA TAIZO
IPC分类号： B01J12/00 , C23C16/44 , C23C16/448 , H01L21/205
摘要： PURPOSE:To provide a CVD system for producing a good thin film without dislocation in composition, by reducing a change in concentration of a solution of raw material or vapor conditions, and preventing particle precipitation or blocking in a vaporizer or a transport pipe. CONSTITUTION:A nozzle 12 is provided at a vaporizer 13 provided separately from a raw-material container 10. After a raw-material solution is blown in spray through the nozzle 12 into the vaporizer 13, the raw material is vaporized by heat and this raw-material gas is conducted through a raw-material gas transport tube 5 to a reaction furnace 7 that is heated by a heating means 6. Then, the raw-material gas is reacted with a reactive gas supplied through a reactive gas transport tube 9 to form a thin film in a CVD method.

28. 发明专利

JPH06160657A PRODUCTION OF OPTICAL WAVEGUIDE 失效
公开(公告)号：JPH06160657A
公开(公告)日：1994-06-07
申请号：JP31325992
申请日：1992-11-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： IMADA KATSUHIRO , YOSHIARA KIICHI , MATSUNO SHIGERU , UCHIKAWA HIDEFUSA , WATAI HISAO , KITAYAMA TADAYOSHI , MIZUOCHI TAKASHI
IPC分类号： C03C13/04 , G02B6/12 , G02B6/13
摘要： PURPOSE:To provide the process for production of the optical waveguide enabling the use of such a substrate which is formable at a temp. lower than heretofore and can, therefore, simplify the process, and is changed in shape and components at a high temp. and having excellent characteristics. CONSTITUTION:The substrate temp. is kept at 400 deg.C and only the vapor of Si(OC2H5)4 (TEOS) is supplied to the substrate 1 to form a quartz film 101 constituting a part of a clad. Ti(O-i-C3H7)4 and TEOS are then supplied as alkoxide of Ti to the substrate 1 to form a high-refractive index layer 102 which is the core part of the optical waveguide. Further, a quartz film 101 which is the clad part of the upper part is formed by supplying the raw material vapor of only the TEOS to the substrate 1 and the multilayered quartz films are etched by a RIE method.

29. 发明专利

JPH05173100A OPTICAL MODULATOR AND ITS PRODUCTION 失效
公开(公告)号：JPH05173100A
公开(公告)日：1993-07-13
申请号：JP33742491
申请日：1991-12-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： UCHIKAWA HIDEFUSA , IMADA KATSUHIRO , YOSHIARA KIICHI , WATAI HISAO , MIZUOCHI TAKASHI , KITAYAMA TADAYOSHI
IPC分类号： G02F1/035
摘要： PURPOSE:To decrease the propagation loss of high frequency by forming an Mg-Nb-0 oxide layer on a crystal substrate consisting of LiNbO3 formed with a Ti diffused waveguide layer and forming oxide superconducting electrodes thereon. CONSTITUTION:An oxide layer 3 contg. the Mg-Nb-0 oxide is formed as the essential component on the surface of the LiNbO3 crystal substrate 1 formed with the optical waveguide 2 and the oxide superconducting electrodes 4 are formed thereon. The oxide layer 3 does not contain Li ions, unlike the substrate 1 itself, and hardly reacts with the oxide superconducting material forming the electrodes 4. In addition, this layer acts to enhance the orientability of the oxide superconducting film. The oxide layer 3 has the refractive index lower than the refractive index of the waveguide 2 and, therefore, plays the role as a buffer layer. Namely, the deterioration in the superconducting characteristics of the electrodes 4 in the diffusion reaction of the constituting elements of the oxide superconducting material and the crystal substrate components is suppressed by the oxide layer 3 and the surface resistance of the electrodes 4 is lowered, by which the high-frequency propagation losses are decreased and the leakage of light from the waveguide 2 is simultaneously prevented.

30. 发明专利

JPH05159918A MANUFACTURE OF FERRITE CORE 失效
公开(公告)号：JPH05159918A
公开(公告)日：1993-06-25
申请号：JP32183391
申请日：1991-12-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAJO HIROSHI , KOBAYASHI KEIICHIRO , WATAI HISAO , TAKADA YOSHIO , OMURA SHUNJI , FUJIMOTO TAKAMITSU , IRIE MASAAKI
IPC分类号： H01F1/34 , H01F41/02
摘要： PURPOSE:To provide an appropriate manufacture of granules so as to manufacture highly dense and equal ferrite cores, in dry press molding. CONSTITUTION:The slurry of a ferrite composition, in which polyacrylic acid ammonium salt in the line of carboxylic acid acrylic acid is added 0.6-1.5wt.% and at the same time glycerin is added from 0.2 to 0.8wt.%, is used as a dispersant.

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